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2025-01-29 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >
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Commands related to connection operations
Default direct connection remote connection-h 192.168.1.20-p 6379
Ping: tests whether the connection is alive and returns pong if it is normal
Echo: printing
Select: switch to the specified database. The database index number index is specified by a numeric value with 0 as the starting index value.
Quit: close connection (connection)
Auth: simple password authentication
Server related commands
Time: returns the current server time
Client list: returns all client information and statistics connected to the server see http://redisdoc.com/server/client_list.html
Client kill ip:port: shut down the client with the address ip:port
Save: save data synchronization to disk
Bgsave: save data asynchronously to disk
Lastsave: returns the Unix timestamp of the last time data was successfully saved to disk
Shundown: save data synchronization to disk, and then shut down the service
Info: provides server information and statistics
Config resetstat: reset some statistics in the info command
Config get: get profile information
Config set: dynamically adjust the configuration of the Redis server (configuration) without restarting. The configuration parameters that can be modified can be listed using the command CONFIG GET *
Rewrite the redis.conf file specified by the config rewrite:Redis server
Monitor: real-time dump of received requests
Slaveof: change replication policy settings
Publish and subscribe related commands
Psubscribe: subscribe to one or more channels that match a given pattern, such as psubscribe news.* tweet.*
Publish: sends the message message to the specified channel channel, such as publish msg "good morning"
Pubsub channels: lists current active channels such as PUBSUB CHANNELS news.i*
Pubsub numsub: returns the number of subscribers for a given channel, such as PUBSUB NUMSUB news.it news.internet news.sport news.music
Pubsub numpat: returns the total number of all patterns subscribed by the client
Punsubscribe: instructs the client to unsubscribe from all given modes.
Subscribe: subscribe to information for a given channel or channels. For example, subscribe msg chat_room
Unsubscribe: instructs the client to unsubscribe from the given channel.
Commands for KEY operations
Exists (key): confirm whether a key exists
Del (key): delete a key
Type (key): type of return value
Keys (pattern): returns all key that satisfy a given pattern
Randomkey: one of the randomly returned key spaces
Keyrename (oldname, newname): rename key
Dbsize: returns the number of key in the current database
Expire: set the active time of a key (s)
Ttl: get the active time of a key
Move (key, dbindex): move the key in the current database to the dbindex database
Flushdb: deletes all key in the currently selected database
Flushall: delete all key in all databases
Commands for String operations
Set (key, value): assigns the value value to the string named key in the database
Get (key): returns the value of the string named key in the database
Getset (key, value): assign the last value to the string named key
Mget (key1, key2, … , key N): returns the value of multiple string in the library
Setnx (key, value): add string with the name key and the value value
Setex (key, time, value): add string to the library and set the expiration time time
Mset (key N, value N): set the values of multiple string in batch
Msetnx (key N, value N): if all string named key I do not exist
Incr (key): string add 1 operation named key
Incrby (key, integer): string named key adds integer
Decr (key): string minus 1 operation named key
Decrby (key, integer): string named key reduces integer
Append (key, value): the value of the string named key is appended to value
Substr (key, start, end): returns the substring of the value of string with the name key
Commands for List operations
Rpush (key, value): add an element with the value value to the end of the list named key
Lpush (key, value): add an element with a value of value to the list header named key
Llen (key): returns the length of the list named key
Lrange (key, start, end): returns the element between start and end in the list named key
Ltrim (key, start, end): intercept list named key
Lindex (key, index): returns the element of the index location in the list named key
Lset (key, index, value): assign a value to the element of index position in the list named key
Lrem (key, count, value): delete the element whose value is value in the list of count key
Lpop (key): returns and deletes the first element in the list named key
Rpop (key): returns and deletes the tail element in the list named key
Blpop (key1, key2, … Key N, timeout): the block version of the lpop command.
Brpop (key1, key2, … Key N, timeout): the block version of rpop.
Rpoplpush (srckey, dstkey): returns and deletes the trailing element of the list named srckey and adds it to the header of the list named dstkey
Commands for Set operations
Sadd (key, member): add the element member to the set named key
Srem (key, member): deletes the element member in the set named key
Spop (key): randomly returns and deletes an element in the set named key
Smove (srckey, dstkey, member): move to a collection element
Scard (key): returns the cardinality of the set named key
Sismember (key, member): whether member is an element of set named key
Sinter (key1, key2, … Key N): find the intersection
Sinterstore (dstkey, (keys)): find the intersection and save the intersection to the collection of dstkey
Sunion (key1, (keys)): Union set
Sunionstore (dstkey, (keys)): join and save the union to the collection of dstkey
Sdiff (key1, (keys)): subtraction set
Sdiffstore (dstkey, (keys)): take the difference set and save the difference set to the collection of dstkey
Smembers (key): returns all elements of a set named key
Srandmember (key): randomly returns an element of set with the name key
Commands for Hash operations
Hset (key, field, value): add the element field to the hash named key
Hget (key, field): returns the value corresponding to field in the hash named key
Hmget (key, (fields)): returns the value corresponding to field I in the hash named key
Hmset (key, (fields)): add the element field to the hash named key
Hincrby (key, field, integer): add integer to the value of field in the hash named key
Hexists (key, field): whether there is a domain with the key field in the hash named key
Hdel (key, field): delete the domain with the key field in the hash named key
Hlen (key): returns the number of elements in a hash named key
Hkeys (key): returns all keys in the hash with the name key
Hvals (key): returns the value of all keys in the hash named key
Hgetall (key): returns all keys (field) and their corresponding value in the hash named key
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